go/src/cmd/compile/internal/noder/lex.go

func isSpace(c rune) bool { … }

func isQuoted(s string) bool { … }

const funcPragmas …

func pragmaFlag(verb string) ir.PragmaFlag { … }

// pragcgo is called concurrently if files are parsed concurrently.
func (p *noder) pragcgo(pos syntax.Pos, text string) { … }

// pragmaFields is similar to strings.FieldsFunc(s, isSpace)
// but does not split when inside double quoted regions and always
// splits before the start and after the end of a double quoted region.
// pragmaFields does not recognize escaped quotes. If a quote in s is not
// closed the part after the opening quote will not be returned as a field.
func pragmaFields(s string) []string { … }